I tried the stylus with the iPad 2 and found that it fit securely with or without the HyperShield back cover on. The curved sides of the iPad 2 leave a lot of the plastic plug uncovered, just like the real Apple connector, but it is held firmly.
So it's designed so that it is always with your iPhone or iPad, but how does it work? It has a black, smooth, rubbery rounded tip that's held to the plastic piece with a metal band. The tip is soft and easily compressed. It's not the same rough, sponge-like material that some capacitive styluses use. I found that I have to hold it more perpendicular to the screen to get it to work well. It doesn't always work when I hold it at an angle like I would a pencil. I also found that I had to press pretty firmly when I was typing. I'm a touch-typist with a real keyboard - all 10 fingers! - but I can't do that on the virtual keyboards. I can usually use one or two fingers on each hand with the virtual keyboards, though. I find it is very slow typing with any stylus because I can only use one finger at a time, as it were. But it does work to type, even with the tiny vertical keyboard on the iPhone 4.
So long as you remember the correct angle, the stylus works well to swipe, tap, slide, or draw on the iPhone or iPad 2 screens. That said, I don't like using the stylus because of its tiny size. Holding it gives me a flashback to writing on the chalkboards during my school days. It feels like you're holding an inch-long nub of chalk. You have to hold your hand in a pinched, cramped position that become somewhat painful if you're doing more than just a couple of swipes. The squared edges press painfully into my fingers, and the plastic connector can poke into my fingers if I don't hold it just right.
I still can't draw, so I asked Rachel to try the Mini Stylus out by doing a drawing for me. (You'll notice she was feeling a bit Goth yesterday.) Rachel spent about an hour working with the stylus, and she found it hard to use for the exact same reasons I mentioned above. She also said the Mini Stylus made it hard to see what she was doing. Its small size doesn't give you a lot of room to hold it, and your fingers block your view because they are so close to your working surface.
I had Butch try the stylus, too. He has the biggest hands in the family, and he found the tiny stylus very hard to use.
I guess my bottom line is that the JAVOedge Mini Stylus will work well to answer my iPhone in the winter. It worked great to "slide to answer" my phone. Having it plugged in to the charging port means it will always be convenient when I need to use it. And at $10, it's cheaper than a lot of those special gloves. I just can't recommend it for more intensive use, though.
source: The Gadgeteer